A quick locking device for an electric tricycle battery box
Patent Information
- Application Number
- CN202522191432.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-16
AI Technical Summary
[0003]然而，传统电动三轮车蓄电池箱在固定与防护方面存在明显缺陷
1、该一种电动三轮车蓄电池箱的快速锁紧装置，通过升降框、上盖、锁芯和第一卡扣的设置，使该电动三轮车蓄电池箱的快速锁紧装置具备了便于快速对上盖进行锁紧的效果，通过升降框、上盖、锁芯和第一卡扣的配合设置，在使用的过程中可以使用钥匙插入锁芯后转动，即可带动第一卡扣转动，使其脱离与上盖前侧的卡接，即可将上盖打开，关闭后反向转动钥匙即可，提升了蓄电池的防盗安全性的同时，便于对上盖进行快捷锁定。
Smart Images
Figure CN224789844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of battery box locking devices, and more specifically, it relates to a quick locking device for battery boxes of electric tricycles. Background Technology
[0002] The quick-locking device for the battery box of an electric tricycle is a core auxiliary component of the electric tricycle's energy storage system. It primarily enables a quick and secure connection between the battery box cover and the box body, fixing the battery inside the box with a precise locking structure to prevent displacement or collision during tricycle operation (especially on bumpy roads). This device not only enhances the battery's safety but also simplifies the battery installation and removal process, facilitating later maintenance and replacement. It plays a crucial role in the manufacturing, daily use, and maintenance of electric tricycles, and is a key piece of equipment ensuring the stable operation of the electric tricycle's energy storage system.
[0003] However, traditional electric tricycle battery boxes have significant shortcomings in terms of fixation and protection. Existing battery boxes are mostly simple metal enclosures, relying solely on sponge pads or rubber blocks glued to the inner bottom wall for battery cushioning and protection. However, these flexible cushioning components are susceptible to irreversible deformation due to environmental aging and the weight of the battery after prolonged use. This deformation causes the battery to shift downwards, creating a noticeable gap between it and the box cover. Furthermore, traditional boxes lack efficient and quick-locking structures, relying mostly on bolts or simple clips for fixation, which neither compensates for the gap nor addresses the cumbersome disassembly and assembly issues. During electric tricycle operation, the battery frequently collides with the box cover and enclosure within this gap, potentially leading to damage to the battery casing and loose electrode contacts, or even serious safety risks such as leakage and short circuits. This fails to meet the long-term stable protection requirements for batteries. Utility Model Content
[0004] (a) Technical problems to be solved In view of the above situation and to overcome the defects of the prior art, this utility model provides a quick locking device for the battery box of an electric tricycle, which aims to solve the problems in the background art.
[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a quick-locking device for an electric tricycle battery box, comprising a battery box body, a lifting frame, and a top cover, characterized in that: a limiting groove is fixedly connected to the outer surface of the battery box body, a slider is slidably connected to the inner wall of the limiting groove, a limiting post is slidably connected to the inner wall of the limiting groove, the lifting frame is sleeved on the upper outer surface of the battery box body, the top cover is rotatably connected to the upper surface of the lifting frame via a hinge, a connecting block is fixedly connected to the front of the lifting frame, and a lock cylinder is fixedly connected to the inner wall of the front of the lifting frame via a limiting bolt.
[0006] The present invention is further configured such that four limiting grooves are provided and are evenly distributed in a rectangular array, two sliders are provided and are symmetrically arranged, two limiting posts are provided and are symmetrically arranged, and the upper end of the limiting post is fixedly connected to the lower surface of the rear side of the lifting frame.
[0007] The present invention is further configured such that a lead screw is rotatably connected to the inner wall of the connecting block, and the outer surface of the lead screw is connected to the inner wall of the slider in a transmission link.
[0008] The present invention is further configured such that a first buckle is rotatably connected to the middle part of the lock cylinder, the upper end of the first buckle is engaged with the outer surface of the front side of the upper cover, and a second buckle is rotatably connected to the outer surface of the middle part of the lock cylinder.
[0009] The present invention is further configured such that a rotating shaft is rotatably connected to the inner side wall of the front side of the lifting frame, a limiting groove is provided in the middle of the rotating shaft, a second buckle is fixedly connected to the outer surface of the middle part of the lock cylinder, and the lower surface of the rear end of the second buckle engages with the inner side wall of the limiting groove.
[0010] The present invention is further configured such that a worm wheel is fixedly connected to the upper end of the lead screw, and a worm tooth groove is provided at the right end of the rotating shaft, and the outer surface of the worm wheel is connected to the outer surface of the worm tooth groove in a transmission connection.
[0011] The present invention is further configured such that a protruding strip is fixedly connected to the outer surface of the rotating shaft on the left side of the limiting groove, and a paddle is movably connected to the outer surface of the rotating shaft on the left side of the protruding strip, and a groove is formed on the inner side wall of the paddle.
[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a quick locking device for the battery box of an electric tricycle, which has the following advantages: 1. This quick-locking device for an electric tricycle battery box, through the arrangement of a lifting frame, a top cover, a lock cylinder, and a first buckle, enables the electric tricycle battery box to quickly lock the top cover. Through the coordinated arrangement of the lifting frame, top cover, lock cylinder, and first buckle, during use, a key can be inserted into the lock cylinder and turned to rotate the first buckle, disengaging it from the front of the top cover and opening it. To close, the key can be turned in the opposite direction. This improves the anti-theft security of the battery while facilitating quick locking of the top cover.
[0013] 2. This quick-locking device for an electric tricycle battery box, through the arrangement of a lifting frame, limiting groove, slider, lead screw, rotating shaft, worm gear, paddle, and worm tooth groove, enables the quick-locking device to compensate for the gap between the battery and the top cover. The coordinated arrangement of the lifting frame, limiting groove, slider, and lead screw allows adjustment of the height of the lifting frame at the top of the battery box during use, thereby lowering the top cover to clamp the battery. The coordinated arrangement of the rotating shaft, worm gear, protruding strip, paddle, slot, and worm tooth groove allows for synchronous adjustment of the two lead screws, improving adjustment efficiency. Furthermore, the second latch and limiting slot ensure that the rotating shaft can only be adjusted after the key is turned to disengage the second latch from the limiting slot, further enhancing security and preventing criminals from disassembling the lifting frame and stealing the battery through the adjustment device. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the battery box of this utility model; Figure 3 This utility model Figure 1 A schematic diagram of the three-dimensional cross-section at point A in the middle; Figure 4 This utility model Figure 1 Schematic diagram of the structure at point B; Figure 5 This is an exploded view of the structure of the lock cylinder of this utility model.
[0015] In the diagram: 1. Battery housing; 2. Lifting frame; 3. Limiting groove; 4. Slider; 5. Connecting block; 6. Lead screw; 7. Top cover; 8. Limiting bolt; 9. Lock cylinder; 10. First buckle; 11. Second buckle; 12. Rotating shaft; 13. Limiting groove; 14. Worm gear; 15. Protruding strip; 16. Paddle; 17. Slot; 18. Limiting post; 19. Worm gear tooth groove. Detailed Implementation
[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0018] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0019] Please see Figures 1-5 A quick-locking device for an electric tricycle battery box includes a battery box body 1, a lifting frame 2, and a top cover 7. A limiting groove 3 is fixedly connected to the outer surface of the battery box body 1. Four limiting grooves 3 are evenly distributed in a rectangular array. Two sliders 4 are symmetrically arranged, and two limiting posts 18 are symmetrically arranged. The upper end of the limiting post 18 is fixedly connected to the lower rear surface of the lifting frame 2. Sliding sliders 4 and limiting posts 18 are slidably connected to the inner wall of the limiting groove 3. The lifting frame 2 is sleeved on the upper outer surface of the battery box body 1. The top cover 7 is rotatably connected to the upper surface of the lifting frame 2 via a hinge. A lock cylinder 9 is fixedly connected to the inner front wall of the lifting frame 2 via limiting bolts 8. A first buckle 10 is rotatably connected to the middle of the lock cylinder 9. The upper end of the first buckle 10 engages with the outer front surface of the top cover 7. A second buckle 11 is rotatably connected to the outer surface of the middle of the lock cylinder 9.
[0020] Specifically, the lifting frame 2 is fitted onto the upper outer surface of the battery box 1. The upper cover 7 is rotatably connected to the upper surface of the lifting frame 2 via a hinge, and can be rotated around the hinge to open and close. The inner front wall of the lifting frame 2 is fixed with a locking cylinder 9 by a limiting bolt 8. The position of the locking cylinder 9 corresponds to the front of the upper cover 7 to ensure precise alignment when locked. Locking transmission: the middle of the locking cylinder 9 is rotatably connected to the first buckle 10. The upper end of the first buckle 10 is hook-shaped and matches the pre-set snap-fit groove on the outer front surface of the upper cover 7. The locking cylinder 9 has a built-in key drive mechanism. Turning the key can drive the first buckle 10 to rotate synchronously, realizing the switching of "snap-fit" action. When it is necessary to open the upper cover 7, the matching mechanism will be activated. Insert the key into the lock cylinder 9 and turn it clockwise (or in the preset direction). The lock cylinder 9 drives the first latch 10 to rotate downwards, and its hook end disengages from the locking groove on the front side of the upper cover 7, thus releasing the lock on the upper cover 7. At this time, flip the upper cover 7 upwards to expose the inside of the battery box 1, making it easier to remove or maintain the battery. After closing the upper cover 7, turn the key in the opposite direction. The lock cylinder 9 drives the first latch 10 to rotate upwards, and the hook end re-engages into the locking groove of the upper cover 7, thus locking the upper cover 7. The mechanical locking structure of the lock cylinder 9 can prevent unauthorized personnel from forcibly opening it, improving the anti-theft security of the battery, and at the same time preventing the upper cover 7 from being accidentally opened due to bumps while the electric tricycle is in motion.
[0021] Please see Figures 1-5A connecting block 5 is fixedly connected to the front of the lifting frame 2. A lead screw 6 is rotatably connected to the inner wall of the connecting block 5. The outer surface of the lead screw 6 is connected to the inner wall of the slider 4. A rotating shaft 12 is rotatably connected to the inner wall of the front side of the lifting frame 2. A limiting groove 13 is opened in the middle of the rotating shaft 12. A second buckle 11 is fixedly connected to the outer surface of the middle of the lock cylinder 9. The lower surface of the rear end of the second buckle 11 is engaged with the inner wall of the limiting groove 13. A protruding strip 15 is fixedly connected to the outer surface of the rotating shaft 12 on the left side of the limiting groove 13. A paddle 16 is movably connected to the outer surface of the rotating shaft 12 on the left side of the protruding strip 15. A groove 17 is opened in the inner wall of the paddle 16.
[0022] Specifically, four rectangular arrayed limiting grooves 3 are fixed to the outer surface of the battery box 1. Sliding sliders 4 (two symmetrically arranged) and limiting posts 18 (two symmetrically arranged) are slidably connected to the inner wall of the limiting grooves 3. The upper end of the limiting posts 18 is fixed to the lower rear surface of the lifting frame 2. A lead screw 6 is rotatably connected to the inner wall of the connecting block 5 on the front side of the lifting frame 2. The outer surface of the lead screw 6 is threaded to the inner wall of the slider 4. A worm gear 14 is fixed to the upper end of the lead screw 6. A rotating shaft 12 is rotatably connected to the inner front wall of the lifting frame 2. A worm gear groove 19 is provided at the right end of the rotating shaft 12, meshing with the outer surface of the worm gear 14 to form a "worm-worm gear" transmission mechanism. A fixed protruding strip 15 is fixed, and a paddle 16 is movably sleeved on the outside of the rotating shaft 12. Its inner wall has a groove 17 adapted to the protruding strip 15. Sliding the paddle 16 allows the groove 17 to engage with the protruding strip 15, achieving linkage between the paddle 16 and the rotating shaft 12. A second latch 11 is fixed to the outer surface of the middle part of the lock cylinder 9. A limiting groove 13 is opened in the middle of the rotating shaft 12. The lower rear surface of the second latch 11 engages with the inner wall of the limiting groove 13, restricting the rotation of the rotating shaft 12 when not unlocked. The second latch 11 and the first latch 10 are driven synchronously by the lock cylinder 9. Turning the key can simultaneously control the "engagement-disengagement" of both. When there is a gap between the battery and the top cover 7... During the intermittent period, insert the key and turn the lock cylinder 9, simultaneously driving the second latch 11 to rotate forward, disengaging it from the limiting slot 13 of the rotating shaft 12 and releasing the lock on the rotating shaft 12. At this time, the rotating shaft 12 can rotate freely. Hold the lever 16 by hand and slide it to the right along the rotating shaft 12, causing the slot 17 of the lever 16 to engage with the protrusion 15 of the rotating shaft 12. Rotate the lever 16 to drive the rotating shaft 12 to rotate synchronously. Through the meshing transmission of the worm gear groove 19 and the worm wheel 14, the two lead screws 6 are driven to rotate simultaneously. The threaded transmission between the lead screw 6 and the slider 4 converts the rotational motion into linear motion, causing the slider 4 to slide upward along the limiting slot 3, driving the lifting mechanism... The lifting frame 2 and the upper cover 7 descend synchronously until the lower surface of the upper cover 7 is in close contact with the upper surface of the battery to compensate for the gap. After the gap is compensated, the key is turned in the opposite direction, and the lock cylinder 9 drives the second latch 11 to rotate backward, re-engaging into the limiting slot 13 of the rotating shaft 12 and locking the rotating shaft 12. At this time, unauthorized personnel cannot rotate the lever 16 to adjust the height of the lifting frame 2, preventing the battery from being stolen or maliciously damaged. This structure can accurately compensate for the gap, so that the upper cover 7 fits tightly with the battery. The battery does not collide or shift while the electric tricycle is in motion, reducing the rate of shell damage. It takes into account both gap compensation function and anti-theft security, and is suitable for the deformation scenario after long-term use of the battery.
[0023] In summary, when using the entire device: First, insert the key into the lock cylinder 9 and turn it. At this time, both the battery box 1 and the second latch 11 will rotate forward. The first latch 10 will disengage from the front of the upper cover 7, allowing the upper cover 7 to open upwards. After inserting the battery, close the upper cover 7. When there is a gap between the upper cover 7 and the battery, insert the key into the lock cylinder 9 and turn it. The second latch 11 will disengage from the limiting slot 13, allowing the rotating shaft 12 to rotate freely. Hold the lever 16 and slide it to the right on the outer surface of the rotating shaft 12, causing the slot 17 to engage with the outside of the protruding strip 15. Then, move the lever... When piece 16 is inserted, it can drive the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, through the transmission action of the worm gear groove 19 and the worm wheel 14, it will simultaneously drive the two lead screws 6 to rotate. Through the transmission action of the two lead screws 6 and the two sliders 4 respectively, the height of the two sliders 4 on the outer surface of the two lead screws 6 can be adjusted, thereby adjusting the height of the lifting frame 2 on the outer surface of the battery box 1. After adjusting until the top cover 7 is attached to the upper surface of the battery, the lock cylinder 9 can be locked and the key can be removed. At this time, the second buckle 11 is locked in the limiting slot 13, which can effectively prevent the rotating shaft 12 from being rotated and improve the safety performance.
[0024] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A quick-locking device for a battery box of an electric tricycle, comprising a battery box body (1), a lifting frame (2), and a top cover (7), characterized in that: The outer surface of the battery box (1) is fixedly connected to a limiting groove (3), the inner wall of the limiting groove (3) is slidably connected to a slider (4), the inner wall of the limiting groove (3) is slidably connected to a limiting post (18), the lifting frame (2) is sleeved on the outer surface of the upper end of the battery box (1), the upper cover (7) is rotatably connected to the upper surface of the lifting frame (2) by a hinge, the front of the lifting frame (2) is fixedly connected to a connecting block (5), and the inner wall of the front of the lifting frame (2) is fixedly connected to a lock core (9) by a limiting bolt (8).
2. The quick-locking device for an electric tricycle battery box according to claim 1, characterized in that: The limiting groove (3) is provided in four and is evenly distributed in a rectangular array. The slider (4) is provided in two and is symmetrically arranged. The limiting post (18) is provided in two and is symmetrically arranged. The upper end of the limiting post (18) is fixedly connected to the lower surface of the rear side of the lifting frame (2).
3. The quick-locking device for an electric tricycle battery box according to claim 1, characterized in that: The inner wall of the connecting block (5) is rotatably connected to a lead screw (6), and the outer surface of the lead screw (6) is connected to the inner wall of the slider (4) via a transmission link.
4. The quick-locking device for an electric tricycle battery box according to claim 1, characterized in that: The lock cylinder (9) is rotatably connected to a first buckle (10) at its center. The upper end of the first buckle (10) is engaged with the outer surface of the front side of the cover (7). The outer surface of the middle part of the lock cylinder (9) is rotatably connected to a second buckle (11).
5. A quick-locking device for an electric tricycle battery box according to claim 3, characterized in that: The inner wall of the front side of the lifting frame (2) is rotatably connected to a rotating shaft (12). A limiting slot (13) is opened in the middle of the rotating shaft (12). A second buckle (11) is fixedly connected to the outer surface of the middle part of the lock cylinder (9). The lower surface of the rear end of the second buckle (11) is engaged with the inner wall of the limiting slot (13).
6. A quick-locking device for an electric tricycle battery box according to claim 5, characterized in that: The upper end of the lead screw (6) is fixedly connected to a worm gear (14), and the right end of the rotating shaft (12) is provided with a worm tooth groove (19). The outer surface of the worm gear (14) is connected to the outer surface of the worm tooth groove (19) in a transmission connection.
7. A quick-locking device for an electric tricycle battery box according to claim 5, characterized in that: The outer surface of the rotating shaft (12) is fixedly connected to the left side of the limiting groove (13) with a protrusion (15), and the outer surface of the rotating shaft (12) is movably connected to the left side of the protrusion (15) with a paddle (16), and the inner side wall of the paddle (16) is provided with a groove (17).